DataMapper ORM v1.8.2

[eluser]WanWizard[/eluser]
When it comes to validation, there are two ways of handling them. Which you use depends on personal preference.

Some use the CI way of validation: they use the form validation library, set_value(), and only after succesful validation they create a new model object and populate it. You can do that manually by assigning the POST value to the properties, or use the from_array() method from the 'array' extension.

Some use the DM way of validation: form data is directly assigned to the properties of a new object, and the validation rules of the model are used to validate the data. In case validation failed, you pass the object back to the view, you don't need set_value() as that is linked to the form_validation library which is not used in this case.

I use the last way, like so:

Code:

public function add()
{
    // create a new object
    $model = new Modelname();

    // was the form posted?
    if ( $post = $this->input->post() )
    {
        // populate the object
        $model->from_array($post);

        // save the new object, which runs validation
        if ( ! $model->save() )
        {
            // did validation fail?
            if ( $model->valid )
            {
                 // insert failure
            }
            else
            {
                 // validation failure
            }
        }
        
        // save succesful, redirect to edit
        redirect('edit/'.$model->id);
    }
    else
    {
        // new object, add some default values to the object if needed
    }

    // load the view
    $this->load->view('add', array('model' => $model));
}

Edit works the same, but in that case you load an existing record instead of creating a new one.